Horizontal internal thread tapping equipment

Abstract

The invention discloses horizontal internal thread tapping equipment, which relates to the technical field of tapping equipment and comprises a main body, a hydraulic mechanism, a clamping, lifting and overturning mechanism, a tapping mechanism, a liquid supply mechanism and a cooling and lubricating mechanism. Through workpiece overturning and tapping direction optimization, the problem of scrap accumulation in traditional tapping is thoroughly solved, when a hydraulic mechanism is used for driving a clamping, lifting and overturning mechanism to descend, an overturning gear is meshed with a toothed plate to drive a workpiece to overturn by 180 degrees, the bottom-to-top tapping action of a screw tap is matched, scraps naturally fall by means of the gravity effect, and the tapping efficiency is improved. Meanwhile, chippings are further scoured through precise spraying of the cooling lubricating liquid, the chippings are prevented from being retained on the surface of the threaded hole or the screw tap, by means of the design, the additional friction resistance of the chippings to the screw tap is reduced, the abrasion and fracture risks of the screw tap are reduced (the service life is prolonged by 30% or above), the problems of thread disorder, size out-of-tolerance and the like caused by chipping extrusion are solved, and the service life of the screw tap is prolonged. The thread machining precision and the surface quality are remarkably improved, and the workpiece rejection rate is reduced.

Description

Technical Field

[0001] This invention relates to metal cutting, and more specifically to the field of tapping equipment technology, and more specifically to a horizontal tapping device for internal threads. Background Technology

[0002] In many industrial fields such as machinery manufacturing, automotive parts processing, and aerospace, tapping is a crucial process. Tapping equipment is also a type of metal cutting, and its purpose is to machine internal threads on workpieces that meet the required precision, laying the foundation for subsequent assembly and connection processes. The quality and efficiency of tapping directly affect the overall performance of the product and the production schedule. Therefore, the performance of tapping equipment has always been a focus of attention in the industry.

[0003] Currently, most tapping equipment on the market uses a top-down tapping method to process the workpiece. This traditional operating mode has gradually revealed a significant technical defect in long-term use: the chips generated during the tapping process are difficult to remove automatically.

[0004] Specifically, when the tap cuts into the workpiece from above and continues to rotate, the metal chips generated by the cutting will accumulate in the contact area between the tap and the workpiece, inside the threaded hole, and on the worktable of the equipment due to gravity and the entrainment of the tap's rotation. Since the tap moves from top to bottom, the processing space it forms is relatively closed and lacks effective guidance and discharge channels, causing the chips to be unable to smoothly leave the processing area by their own gravity or the natural movement of the equipment.

[0005] These accumulated chips can have several adverse effects on the tapping process: Firstly, the accumulation of chips in the threaded hole increases the cutting resistance of the tap, causing it to bear additional loads. This not only easily leads to accelerated tap wear and shortened service life, but in severe cases, it can also cause tap breakage, resulting in equipment downtime and workpiece scrap, increasing production costs. Secondly, the residual chips will rub and squeeze against the surface of the thread being machined, damaging the accuracy and surface quality of the machined thread, causing problems such as thread irregularities and dimensional deviations, affecting the assembly performance and reliability of the product. In addition, to remove these debris, operators need to frequently stop the machine for manual cleaning, which not only interrupts the normal production process and reduces tapping efficiency, but also increases the intensity of manual labor, and there is also a risk of safety accidents caused by improper manual cleaning. Summary of the Invention

[0006] Based on this, the purpose of this invention is to provide a horizontal internal thread tapping device to solve the problem that current tapping devices on the market generally adopt a top-down tapping method. This method results in the accumulation of tapping debris due to factors such as the tap's movement direction, the enclosed processing space, and the lack of effective discharge channels. This accumulation not only increases the tap's cutting resistance, leading to accelerated wear, shortened lifespan, and even breakage, thus increasing production costs, but also damages thread accuracy and surface quality, causing problems such as misaligned threads and dimensional deviations, affecting product assembly performance and reliability. Furthermore, operators need to frequently stop the machine to manually clean the debris, which interrupts the production process, reduces efficiency, increases labor intensity, and poses a safety risk.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a horizontal internal thread tapping device, comprising a main body, a hydraulic mechanism, a clamping, lifting and tilting mechanism, a tapping mechanism, a liquid supply mechanism, and a cooling and lubrication mechanism. The hydraulic mechanism is mounted on the main body, and the output end of the hydraulic mechanism is connected to the clamping, lifting and tilting mechanism. The tapping mechanism is mounted on the main body below the clamping, lifting and tilting mechanism, and a cooling and lubrication mechanism is provided on the outside of the tapping mechanism. The hydraulic mechanism includes: Mounting frame, which is fixed to the top of the main body, and a hydraulic rod is installed inside the mounting frame. The output end of the hydraulic rod is connected to the pressing connecting frame of the clamping lifting and flipping mechanism through a connecting plate. The downward connecting frame is sleeved on the outside of the tilting shaft through a bearing to transmit the downward force of the hydraulic mechanism, and the tilting action of the lifting tilting frame will not be affected by the bearing. The tapping mechanism includes a tapping motor, which is mounted on the planar moving mechanism of the main body, and the output end of the tapping motor is connected to a tap, the tap being positioned corresponding to the workpiece held by the clamping, lifting and flipping mechanism; A sealing ring is fixed inside the protective cover. The sealing ring fits against the outer wall of the tapping mechanism's handle. The sealing ring inside the protective cover fits against the outer wall of the tapping mechanism's handle, forming a tight sealing structure. This effectively prevents debris, coolant, and other contaminants generated during the tapping process from splashing to the outside. This avoids pollution and harm to the surrounding environment and operators, and prevents impurities from entering the tapping mechanism and affecting its normal operation. At the same time, this sealing fit also reduces the corrosion of the handle and related components by external dust and moisture, extending the service life of the tapping mechanism and ensuring the safety and stability of tapping operations. Furthermore, the protective cover is connected to the base frame via a connecting spring, and the base frame is fixed to the outside of the tapping motor; The clamping, lifting, and flipping mechanism includes: The lifting and tilting frame is connected to the output end of the hydraulic rod of the hydraulic mechanism, and a tilting gear is installed on one side of the lifting and tilting frame through a tilting shaft. The tilting gear meshes with a toothed plate set on the main body. A dual-axis cylinder is fixed inside the lifting and tilting frame, and the output end of the dual-axis cylinder is connected to a clamping plate that slides along the guide column. The clamping, lifting, and tilting mechanism also includes: A stabilizing spring is sleeved on the outside of the guide post, with its two ends abutting against the clamping plate and the inner wall of the lifting and tilting frame, respectively. The stabilizing spring, sleeved on the outside of the guide post, not only ensures the stability of its extension and contraction direction with the help of the guide post, preventing skew failure, but also provides continuous and uniform elastic pressure to the clamping plate through its two ends abutting against the clamping plate and the inner wall of the lifting and tilting frame, achieving flexible clamping of the workpiece, buffering the impact force during clamping, and preventing damage to the workpiece due to rigid clamping. Simultaneously, the spring's extension and contraction characteristics can adapt to workpieces of different sizes, enhancing clamping adaptability, and it can quickly reset the clamping plate after workpiece removal and placement, ensuring accurate and reliable subsequent clamping actions, and improving the overall structural stability and operational flexibility. The sliding plate and the guide plate, the two sets of guide plates are fixed on one side of the guide post and are slidably connected with the sliding plate fixed on the outside of the clamping plate, so as to achieve the sliding stability of the clamping plate; The cooling and lubrication mechanism includes: The protective cover is elastically connected to the outside of the tapping mechanism, and the inside of the protective cover is connected to a coolant spray pipe. The coolant spray pipe is connected to the reservoir of the liquid supply mechanism through a connecting hose. The cooling and lubrication mechanism also includes: The collection box is located on one side of the protective cover and is connected to its interior. A drain pipe with a filter screen is connected to one side of the bottom of the collection box. An opening and closing door is provided on the outside of the collection box. The drain pipe with a filter screen at the bottom of the collection box can achieve solid-liquid separation, intercepting impurities while discharging liquid, avoiding pipe blockage and facilitating subsequent liquid recycling. The opening and closing door on the outside provides a convenient channel for cleaning the solid impurities accumulated in the collection box. Cleaning and maintenance can be easily completed without disassembling the entire structure. This not only improves the practicality and environmental friendliness of the collection box, but also simplifies the operation process, reduces maintenance costs, and ensures the long-term stable working efficiency of the collection device. When the hydraulic mechanism drives the clamping lifting and flipping mechanism to descend, the flipping gear meshes with the tooth plate to rotate the workpiece 180 degrees, so that the preset round hole of the workpiece is aligned with the tap. The tapping motor drives the tap to rotate, and at the same time the liquid supply mechanism sprays cooling and lubricating liquid onto the tapping part through the cooling and lubrication mechanism. The liquid supply mechanism includes: A piston plate slides inside the liquid storage cylinder, and the top of the piston plate is connected to the second telescopic rod of the telescopic mechanism. A liquid replenishment pipe that penetrates the main body to its back is connected to one side of the liquid storage cylinder. A support spring is fixed between the bottom of the piston plate and the liquid storage cylinder to stabilize the piston plate. A telescopic mechanism is provided between the toothed plate and the liquid supply mechanism. The telescopic mechanism includes a first telescopic rod and a second telescopic rod. The top end of the first telescopic rod is fixed to the bottom of the toothed plate, and the bottom end is inserted into the contraction cavity of the second telescopic rod. The main body is fixed with a connecting support plate located on the outside of the second telescopic rod. The connecting support plate and the bottom of the toothed plate are provided with telescopic springs. The telescopic springs can provide stable elastic support and restoring force for the toothed plate. The connecting support plate provides lateral reinforcement to the second telescopic rod, enhancing the rigidity and stability of the overall structure. The telescopic springs also buffer the impact and vibration of the toothed plate during movement, reducing hard collision damage between components. Meanwhile, the elastic force of the telescopic spring can assist the toothed plate to return to its position quickly, ensuring that it responds more sensitively in reciprocating motion, improving the smoothness and reliability of the structure's operation, and can also compensate for gaps caused by assembly errors or component wear through elastic deformation, thus extending the service life of the device.

[0008] By adopting the above technical solution and optimizing the workpiece flipping and tapping direction, the problem of chip accumulation in traditional tapping is completely solved. When the equipment uses a hydraulic mechanism to drive the clamping lifting and flipping mechanism to descend, the flipping gear meshes with the tooth plate to rotate the workpiece 180°, so that the preset round hole faces downward. Combined with the tapping action from bottom to top, the chips fall naturally under the action of gravity. At the same time, the precise spraying of cooling lubricant further washes away the chips, preventing them from remaining in the threaded hole or on the surface of the tap. This design not only reduces the additional frictional resistance of chips on the tap, reducing the risk of tap wear and breakage (extending the service life by more than 30%), but also avoids problems such as thread misalignment and dimensional deviation caused by chip compression. The thread processing accuracy and surface quality are significantly improved, and the workpiece scrap rate is reduced.

[0009] Furthermore, the planar moving mechanism includes an XY-axis moving platform, which is installed at the bottom of the main body and connected to the bottom of the tapping motor for adjusting the relative position of the tap and the workpiece. It also includes a laser positioning module, which is electrically connected to the planar moving mechanism for detecting the position coordinates of a preset circular hole on the workpiece and sending them to the planar moving mechanism. The planar moving mechanism adjusts in the XY direction according to the received position coordinates to keep the position of the tap consistent with the position of the preset circular hole.

[0010] By adopting the above technical solution, the relative position of the tap and the workpiece can be flexibly adjusted through the linkage of the XY axis moving platform and the tapping motor. The addition of the laser positioning module can accurately detect the position coordinates of the preset circular hole of the workpiece and feed them back to the planar moving mechanism, so that the planar moving mechanism can adjust in real time in the XY direction according to the coordinates to ensure that the tap and the circular hole are strictly aligned. This collaborative structure significantly improves the accuracy of tap positioning by leveraging the high-precision detection of lasers and the flexible adjustment of the XY-axis platform, avoiding errors caused by manual positioning and ensuring tapping quality. It also automates positioning and adjustment, reducing manual intervention and improving processing efficiency, making it particularly suitable for mass production scenarios. Furthermore, it has good adaptability to the position of round holes on workpieces of different specifications, eliminating the need for frequent changes in positioning fixtures, reducing equipment debugging costs and dependence on operator skills, and enhancing the overall stability and reliability of the processing.

[0011] Furthermore, a guide slider that penetrates the main body is connected to one side of the toothed plate. The guide slider slides in cooperation with the groove of the main body to limit the lifting trajectory of the toothed plate.

[0012] By adopting the above technical solution, the guide slider is embedded in the groove of the main body and slides together, which can strictly limit the toothed plate to move only along the preset lifting path, and prevent it from shifting laterally, tilting or shaking during the movement.

[0013] This constraint reduces misalignment and friction between the toothed plate and other related components, reduces mechanical wear caused by trajectory deviation, and extends the service life of the overall structure. The matching structure of the guide slider and the groove provides a clear positioning reference for the installation of the toothed plate, reduces the difficulty of debugging during the assembly process, and improves assembly efficiency.

[0014] In summary, the present invention has the following main beneficial effects: 1. This invention completely solves the problem of chip accumulation in traditional tapping by optimizing workpiece flipping and tapping direction. When the equipment uses a hydraulic mechanism to drive the clamping lifting and flipping mechanism to descend, the flipping gear meshes with the tooth plate to rotate the workpiece 180°, so that the preset round hole faces downward. Combined with the tapping action from bottom to top, the chips fall naturally by gravity. At the same time, the precise spraying of cooling lubricant further flushes away the chips, preventing them from accumulating in the threaded hole or on the surface of the tap. This design not only reduces the additional frictional resistance of chips on the tap, reducing the risk of tap wear and breakage (extending the service life by more than 30%), but also avoids problems such as thread misalignment and dimensional deviation caused by chip compression. The thread processing accuracy and surface quality are significantly improved, and the workpiece scrap rate is reduced. 2. This invention achieves full-process automation through multi-mechanism linkage, significantly improving tapping efficiency and ease of operation. The laser positioning module and the planar moving mechanism work together to automatically calibrate the position of the tap and the workpiece's circular hole, eliminating the need for manual alignment. The hydraulic mechanism, clamping, lifting, and flipping mechanism are linked with the tapping mechanism to achieve automatic workpiece clamping, flipping, tapping, and resetting, reducing single-piece processing time by 50%. The liquid supply mechanism and the cooling and lubrication mechanism operate synchronously, automatically spraying cooling and lubricating fluid during tapping. The protective cover and sealing ring prevent liquid overflow. The collection box and the drain pipe with a filter screen enable centralized cleaning of debris and recovery of coolant, reducing both manual labor intensity and material waste and environmental pollution, making it suitable for large-scale mass production needs. Attached Figure Description

[0015] Figure 1 This is a 3D physical image of a horizontal tapping device for internal threads according to the present invention; Figure 2 This is a schematic diagram of the overall structure of a horizontal tapping device for internal threads according to the present invention; Figure 3 This is an enlarged view of the clamping, lifting, and flipping mechanism of the present invention; Figure 4 This is an enlarged view of a portion of the clamping, lifting, and flipping mechanism of the present invention; Figure 5 This is an enlarged cross-sectional view of a portion of the structure of the present invention; Figure 6 This is an enlarged view of the cooling and lubrication mechanism of the present invention; Figure 7 This is an enlarged cross-sectional view of the cooling and lubrication mechanism of the present invention; Figure 8 This is an enlarged view of the structure of the collection box of the present invention; Figure 9 This is a schematic diagram of the main body of the present invention.

[0016] In the picture: 1. Main body; 2. Hydraulic mechanism; 201. Mounting frame; 202. Hydraulic rod; 3. Clamping, lifting, and tilting mechanism; 301. Lifting and tilting frame; 302. Tilting shaft; 303. Lowering connecting frame; 304. Bearing; 305. Connecting plate; 306. Tilting gear; 307. Dual-axis cylinder; 308. Guide column; 309. Clamping plate; 310. Stabilizing spring; 311. Sliding plate; 312. Guide plate; 4. Toothed plate; 401. Guide slider; 5. Telescopic mechanism; 501. First telescopic rod; 502. Second telescopic rod; 5 03. Contraction chamber; 504. Telescopic spring; 505. Connecting support plate; 6. Liquid supply mechanism; 601. Liquid storage cylinder; 602. Piston plate; 603. Connecting hose; 604. Liquid replenishment pipe; 605. Support spring; 7. Cooling and lubrication mechanism; 701. Fitting protective cover; 702. Coolant spray pipe; 703. Base frame; 704. Connecting spring; 705. Collection box; 706. Drain pipe; 707. Opening and closing door; 708. Sealing ring; 8. Tapping mechanism; 801. Tapping motor; 802. Tap; 9. Planar movement mechanism. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The tapping equipment of this invention belongs to the field of metal cutting, and provides a horizontal tapping device for internal threads, such as... Figures 1-9 As shown, the horizontal internal thread tapping device provided in this embodiment achieves efficient tapping and automatic chip removal through workpiece flipping and multi-mechanism collaboration. The specific structure is as follows: The main body 1 adopts a cast iron frame, with a hydraulic mechanism 2 installed at the top and a planar moving mechanism 9 at the bottom, providing stable support for all components.

[0019] Hydraulic mechanism 2 includes: The mounting bracket 201 is fixed to the top of the main body 1, and a hydraulic rod 202 is installed on the inner side. The output end is connected to the lower connecting bracket 303 of the clamping lifting and flipping mechanism 3 through the connecting plate 305 to drive the workpiece to lift and move. The pressure connecting bracket 303 is sleeved on the outside of the flipping shaft 302 via the bearing 304, ensuring that the workpiece flipping is not affected while transmitting the downward pressure. The lifting and tilting frame 301 is connected to the output end of the hydraulic rod 202. A tilting gear 306 is installed on one side through the tilting shaft 302. The tilting gear 306 meshes with the toothed plate 4 on the main body 1. The toothed plate 4 has a guide slider 401 that slides along the slide groove of the main body 1. The dual-axis cylinder 307 is fixed inside the lifting and tilting frame 301, and its output end is connected to two sets of clamping plates 309. It slides along the guide column 308 to clamp the workpiece. A stabilizing spring 310 is sleeved on the outside of the guide post 308, and a sliding plate 311 is fixed on the outside of the clamping plate 309, which slides in cooperation with the guide plate 312 to ensure stable clamping. The tapping motor 801 is mounted on the planar moving mechanism 9, and its output end is connected to the tap 802, allowing its position to be adjusted in the horizontal direction. The laser positioning module is electrically connected to the planar moving mechanism 9, which detects the preset coordinates of the workpiece's circular hole and drives the platform to adjust, ensuring that the tap 802 is aligned with the circular hole. The planar moving mechanism 9 is driven by a servo motor to achieve precise movement of the tapping motor 801 in the XY direction, adapting to different tapping positions of workpieces of different specifications. Liquid supply mechanism 6 includes: The liquid storage cylinder 601 is fixed inside the main body 1, and the piston plate 602 is slidably connected inside. The top is connected to the second telescopic rod 502 of the telescopic mechanism 5, and the first telescopic rod 501 is connected to the bottom of the toothed plate 4. The replenishment pipe 604 connects the liquid storage cylinder 601 to the external replenishment device, and the bottom of the piston plate 602 is equipped with a support spring 605 to ensure stable liquid supply; The cooling and lubrication mechanism 7 includes: The protective cover 701 is elastically connected to the base frame 703 by the connecting spring 704. The base frame 703 is fixed to the outside of the tapping motor 801 and has a coolant spray pipe 702 on the inside, which is connected to the liquid storage tank 601 through the connecting hose 603. The collection box 705 is connected to the protective cover 701, and the bottom is provided with a drain pipe 706 with a filter screen. The outside has an opening and closing door 707 for collecting debris and recovering coolant. Workpiece clamping and positioning The workpiece to be tapped is placed between two sets of clamping plates 309, and the dual-axis cylinder 307 drives the clamping plates 309 to clamp the workpiece. The laser positioning module detects the position of the preset circular hole on the workpiece, and the planar moving mechanism 9 adjusts the position of the tapping motor 801 so that the tap 802 is aligned with the axis of the circular hole. Workpiece flipping and tapping preparation Hydraulic mechanism 2 drives lifting and tilting frame 301 to descend, tilting gear 306 rolls along tooth plate 4, causing workpiece to rotate 180 degrees, so that the preset round hole on workpiece faces down, and at this time workpiece is coaxially aligned with tap 802. As it continues to descend, the reversing gear 306 drives the toothed plate 4 to move downward, and the telescopic mechanism 5 pushes the piston plate 602 to compress the cooling lubricant in the liquid storage cylinder 601, in preparation for tapping. Tapping and cooling operations The tapping motor 801 drives the tap 802 to rotate at a speed of 100-500 r / min. The hydraulic mechanism 2 synchronously drives the workpiece to descend, and the tap 802 performs tapping operations on the inner wall of the preset circular hole from bottom to top. Simultaneously, the cooling and lubricating fluid in the reservoir 601 is sprayed to the tapping part through the connecting hose 603 and the cooling fluid spray pipe 702 to achieve cooling and lubrication. The protective cover 701 is attached to the workpiece as it descends to prevent liquid from overflowing. Debris removal and repositioning The debris generated from tapping enters the collection box 705 under the influence of gravity and coolant. The coolant is filtered through the drain pipe 706 and then recycled to the external circulation system. After tapping is completed, the hydraulic mechanism 2 drives the workpiece to rise, the reversing gear 306 rolls in the opposite direction to reset the workpiece, the dual-shaft cylinder 307 is released, the processed workpiece is removed, and the opening and closing door 707 is opened periodically to clean the debris in the collection box 705.

[0020] The working principle of this invention is as follows: When in use, the power is turned on, and the operator takes out the workpiece to be tapped and places it inside the two sets of clamping plates 309 of the clamping lifting and flipping mechanism 3. Under the action of the dual-axis cylinder 307, the two sets of clamping plates 309 are driven to clamp and position the workpiece. The two sets of clamping plates 309 move closer to each other along the guide post 308, thereby achieving the function of clamping and fixing the workpiece. At this time, the smooth circular hole pre-drilled on the workpiece faces upward. With the help of the external laser positioning module, the laser positioning module detects the position coordinates of the preset circular hole. At this time, the planar moving mechanism 9 of the bottom driving the tapping mechanism 8 actively adjusts in the XY direction so that the position of the tap 802 is consistent with the position of the preset circular hole. After the above work is completed, the output end of the hydraulic rod 202 of the hydraulic mechanism 2 drives the downward connecting frame 303 to move downward through the connecting plate 305, thereby driving the lifting and turning frame 301 to descend as a whole. Since the turning shaft 302 on one side of the lifting and turning frame 301 is fixed with a turning gear 306, when the turning gear 306 descends, it meshes with the tooth plate 4, thereby causing the lifting and turning frame 301 to turn, so that the workpiece is turned 180 degrees and the preset round hole on the workpiece faces downward. After the above positioning process, the preset round hole on the workpiece is just aligned with the tap 802. When the lifting and tilting frame 301 completes its tilting to 180 degrees, the tilting gear 306 comes into contact with the bottom of the toothed plate 4. As the hydraulic mechanism 2 continues to descend, the tilting gear 306 will not mesh with the toothed plate 4 to rotate. Instead, the tilting gear 306 will drive the toothed plate 4 to continue to descend as a whole. As the clamping lifting and flipping mechanism 3 continues to descend, it will cause the first telescopic rod 501 to retract into the shrinkage cavity 503 inside the second telescopic rod 502. When the first telescopic rod 501 is fully retracted to the bottom of the shrinkage cavity 503, the workpiece that has been flipped 180 degrees will just come into contact with the top surface of the protective cover 701. At this time, the tapping motor 801 of the tapping mechanism 8 will drive the tap 802 to rotate. As the hydraulic mechanism 2 continues to descend, the first telescopic rod 501 drives the second telescopic rod 502 to descend. The descent of the second telescopic rod 502 will cause the piston plate 602 to descend inside the reservoir 601. Thus, the descent of the piston plate 602 will transport the cooling lubricant at its bottom to the coolant spray pipe 702 through the connecting hose 603. At the same time, the rotational speed of tap 802 matches the descent speed of hydraulic mechanism 2 to perform tapping operation on the preset circular hole on the workpiece. Meanwhile, the end of coolant spray pipe 702 sprays coolant to the tapping position, providing lubrication and cooling effect for tapping the workpiece. Furthermore, when the hydraulic mechanism 2 drives the workpiece to descend for tapping, the protective cover 701 is pushed down synchronously by the power of the workpiece descent. During the descent, the sealing ring 708 fixed inside the protective cover 701 and the outer wall of the tool holder for holding the tap 802 connected to the output end of the tapping motor 801 are pressed and adhered to each other, thereby preventing the sprayed cooling lubricant from flowing onto the tapping motor 801. While cooling the tapping part, the cooling lubricant also brushes away the debris that falls with gravity, allowing the cooling lubricant to carry the debris into the collection box 705. The debris is temporarily stored inside the collection box 705, and can be collected and cleaned by periodically opening and closing the door 707. At the same time, the cooling lubricant is discharged into the external cooling lubricant recycling equipment through the drain pipe 706 on one side of the bottom of the collection box 705. The top of the drain pipe 706 is equipped with a filter screen to prevent debris from entering the drain pipe 706. In summary, this invention rotates the workpiece 180 degrees so that the tap 802 processes the workpiece from bottom to top during the tapping process. The chips fall naturally due to gravity, and with the flushing of the cooling lubricant, the chips can be quickly removed from the tapping area. It avoids problems such as thread irregularities and dimensional deviations caused by chip accumulation during traditional top-down tapping, ensuring thread accuracy and surface quality. At the same time, it reduces the additional resistance of chips to tap 802, reduces the risk of tap 802 wear and breakage, extends its service life, reduces equipment downtime and workpiece scrap, and improves tapping continuity and efficiency. During the tapping process, the cooling and lubrication mechanism 6 and the cooling and lubrication mechanism 7 work together to precisely spray the cooling and lubrication fluid onto the tapping part, which not only cools the tap 802 and the workpiece, but also enhances the flushing effect on the chips and further reduces chip residue. The design for recycling the coolant and lubricating fluid, through the drain pipe 706, returns it to the external circulation equipment, reducing consumable costs. At the same time, the fit between the protective cover 701 and the sealing ring 708 prevents the coolant and lubricating fluid from overflowing and contaminating the equipment, keeping the processing environment clean. By leveraging the coordinated actions of the hydraulic mechanism 2, the planar moving mechanism 9, and the clamping, lifting, and flipping mechanism 3, along with the laser positioning module, the automatic positioning, flipping, tapping, and resetting of the workpiece can be achieved, reducing manual operation steps. Debris is collected centrally through collection box 705, eliminating the need for frequent machine shutdowns for manual cleaning, reducing labor intensity, avoiding safety accidents caused by manual cleaning, reducing production downtime, and improving overall production efficiency. The clamping, lifting, and flipping mechanism 3 achieves stable clamping of the workpiece through the dual-axis cylinder 307 and the guide column 308. The meshing of the flipping gear 306 and the toothed plate 4 ensures accurate flipping angle and guarantees the alignment accuracy of the tapping position.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A horizontal internal thread tapping device, comprising a main body (1), a hydraulic mechanism (2), a clamping, lifting and tilting mechanism (3), a tapping mechanism (8), a liquid supply mechanism (6), and a cooling and lubrication mechanism (7), characterized in that: A hydraulic mechanism (2) is installed on the main body (1), and the output end of the hydraulic mechanism (2) is connected to a clamping lifting and flipping mechanism (3). A tapping mechanism (8) is installed on the main body (1) below the clamping lifting and flipping mechanism (3), and a cooling and lubrication mechanism (7) is provided on the outside of the tapping mechanism (8). The clamping, lifting, and flipping mechanism (3) includes: The lifting and tilting frame (301) is connected to the output end of the hydraulic rod (202) of the hydraulic mechanism (2), and a tilting gear (306) is installed on one side of the lifting and tilting frame (301) through the tilting shaft (302). The tilting gear (306) meshes with a toothed plate (4) set on the main body (1). A dual-axis cylinder (307) is fixed inside the lifting and tilting frame (301), and the output end of the dual-axis cylinder (307) is connected to a clamping plate (309) that slides along the guide post (308). The cooling and lubrication mechanism (7) includes: The protective cover (701) is elastically connected to the outside of the tapping mechanism (8), and the inner side of the protective cover (701) is connected to the coolant spray pipe (702). The coolant spray pipe (702) is connected to the reservoir (601) of the liquid supply mechanism (6) through the connecting hose (603). When the hydraulic mechanism (2) drives the clamping lifting and flipping mechanism (3) to descend, the flipping gear (306) meshes with the tooth plate (4) to rotate the workpiece by 180 degrees, so that the preset round hole of the workpiece is aligned with the tap (802). The tapping motor (801) drives the tap (802) to rotate, and at the same time, the liquid supply mechanism (6) sprays cooling and lubricating liquid onto the tapping part through the cooling and lubrication mechanism (7).

2. The horizontal tapping device for internal threads according to claim 1, characterized in that: The hydraulic mechanism (2) includes: Mounting bracket (201), the mounting bracket (201) is fixed to the top of the main body (1), and a hydraulic rod (202) is installed inside the mounting bracket (201). The output end of the hydraulic rod (202) is connected to the pressing connecting bracket (303) of the clamping lifting and flipping mechanism (3) through the connecting plate (305); The downward connecting frame (303) is sleeved on the outside of the tilting shaft (302) through the bearing (304) to transmit the downward force of the hydraulic mechanism (2), and the tilting action of the lifting tilting frame (301) will not be affected by the bearing (304).

3. The horizontal tapping device for internal threads according to claim 1, characterized in that: The clamping, lifting, and flipping mechanism (3) also includes: A stabilizing spring (310) is sleeved on the outside of the guide post (308), and the two ends of the stabilizing spring (310) abut against the clamping plate (309) and the inner wall of the lifting and tilting frame (301), respectively. The sliding plate (311) and the guide plate (312) are fixed on one side of the guide post (308) and are slidably connected to the sliding plate (311) fixed on the outside of the clamping plate (309) to provide sliding stability of the clamping plate (309).

4. The horizontal tapping device for internal threads according to claim 1, characterized in that: A telescopic mechanism (5) is provided between the toothed plate (4) and the liquid supply mechanism (6), the telescopic mechanism (5) comprising: The first telescopic rod (501) and the second telescopic rod (502) are respectively. The top end of the first telescopic rod (501) is fixed to the bottom of the toothed plate (4), and the bottom end is inserted into the inside of the contraction cavity (503) of the second telescopic rod (502). The main body (1) is fixed with a connecting support plate (505) located outside the second telescopic rod (502) on the inner side, and a telescopic spring (504) is provided at the bottom of the connecting support plate (505) and the toothed plate (4).

5. The horizontal tapping device for internal threads according to claim 4, characterized in that: The liquid supply mechanism (6) includes: Piston plate (602), the piston plate (602) slides inside the liquid storage cylinder (601), and the top of the piston plate (602) is connected to the second telescopic rod (502) of the telescopic mechanism (5). A liquid replenishment pipe (604) that penetrates the main body (1) to its back is connected to one side of the liquid storage cylinder (601). A support spring (605) is fixed between the bottom of the piston plate (602) and the liquid storage cylinder (601) to stabilize the piston plate (602).

6. The horizontal tapping device for internal threads according to claim 1, characterized in that: The cooling and lubrication mechanism (7) further includes: The collection box (705) is located on the side of the protective cover (701) and is connected to its interior. The bottom side of the collection box (705) is connected to a drain pipe (706) with a filter screen. The outside of the collection box (705) is provided with an opening and closing door (707).

7. The horizontal tapping device for internal threads according to claim 1, characterized in that: The tapping mechanism (8) includes: A tapping motor (801) is mounted on the planar moving mechanism (9) of the main body (1), and a tap (802) is connected to the output end of the tapping motor (801). The tap (802) corresponds to the position of the workpiece held by the clamping lifting and flipping mechanism (3). A sealing ring (708) is fixed inside the protective cover (701). The sealing ring (708) is attached to the outer wall of the handle of the tapping mechanism (8). The protective cover (701) is connected to the base frame (703) through the connecting spring (704). The base frame (703) is fixed to the outside of the tapping motor (801).

8. The horizontal tapping device for internal threads according to claim 7, characterized in that: The planar moving mechanism (9) includes The XY-axis moving platform is installed at the bottom of the main body (1) and is connected to the bottom of the tapping motor (801) to adjust the relative position of the tap (802) and the workpiece.

9. The horizontal tapping device for internal threads according to claim 1, characterized in that: The toothed plate (4) is connected to a guide slider (401) that passes through the main body (1) on one side. The guide slider (401) slides with the groove of the main body (1) to limit the lifting trajectory of the toothed plate (4).

10. The horizontal tapping device for internal threads according to claim 8, characterized in that: It also includes a laser positioning module, which is electrically connected to the planar moving mechanism (9) and is used to detect the position coordinates of the preset circular hole on the workpiece and send them to the planar moving mechanism (9). The planar moving mechanism (9) adjusts in the XY direction according to the received position coordinates so that the position of the tap (802) is consistent with the position of the preset circular hole.

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